RCS2012F2151CS Equivalent & Substitute Parts

Part Overview

The RCS2012F2151CS is a 2.15 kOhms ±1% 0.125W chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This thick film resistor features anti-sulfur and moisture-resistant properties, operating across -55°C to 155°C with a temperature coefficient of ±100ppm/°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, package dimensions, and environmental ratings to ensure direct functional replacement in circuit applications.

Key Parameters

Parameter	Value
Resistance	2.15 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Packaging Type	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F2151CS is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value (2.15 kOhms), tolerance (±1%), and power rating (0.125W) must be identical. Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C) establish thermal performance boundaries.

Package Compatibility: All substitute parts must use 0805 (2012 Metric) package format with matching physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) to ensure PCB footprint compatibility.

Composition & Construction: Thick film construction is required for all substitutes to maintain electrical performance characteristics.

Compliance & Environmental: ROHS3 compliance and MSL 1 rating are mandatory. All substitutes must meet or exceed these environmental and regulatory requirements.

Packaging Format: Tape & Reel (TR) packaging ensures compatibility with automated assembly processes.

Five substitute parts meet these criteria: RC0805FR-072K15L (YAGEO), AC0805FR-072K15L (YAGEO), CRCW08052K15FKEA (Vishay Dale), ERJ-6ENF2151V (Panasonic Electronic Components), and TRR10EZPF2151 (Rohm Semiconductor).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Height Max (mm)	Features	Product Status	RoHS	MSL
RCS2012F2151CS	Samsung Electro-Mechanics	2.15 kΩ	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.66	Anti-Sulfur, Moisture Resistant	Active	ROHS3	1
RC0805FR-072K15L	YAGEO	2.15 kΩ	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.60	Moisture Resistant	Active	ROHS3	1
AC0805FR-072K15L	YAGEO	2.15 kΩ	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.60	Automotive AEC-Q200, Moisture Resistant	Active	ROHS3	1
CRCW08052K15FKEA	Vishay Dale	2.15 kΩ	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.50	Automotive AEC-Q200	Active	ROHS3	1
ERJ-6ENF2151V	Panasonic Electronic Components	2.15 kΩ	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.70	Automotive AEC-Q200	Active	ROHS3	1
TRR10EZPF2151	Rohm Semiconductor	2.15 kΩ	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.65	Anti-Sulfur	Obsolete	ROHS3	1

Engineering Selection Recommendations

Active Production Status: RC0805FR-072K15L, AC0805FR-072K15L, CRCW08052K15FKEA, and ERJ-6ENF2151V are all in active production and represent the primary substitution options for new designs and ongoing production requirements.

Automotive Applications: AC0805FR-072K15L (YAGEO), CRCW08052K15FKEA (Vishay Dale), and ERJ-6ENF2151V (Panasonic) carry AEC-Q200 automotive qualification. These parts are suitable for automotive-grade applications requiring enhanced reliability standards.

Compliance & Regulatory: All five substitute parts maintain ROHS3 compliance and MSL 1 rating, matching the environmental and regulatory profile of the RCS2012F2151CS.

Obsolescence Consideration: TRR10EZPF2151 (Rohm Semiconductor) is marked as obsolete. While electrically equivalent and currently in inventory, this part should not be selected for new designs due to discontinued production status.

Physical Dimensions: Height variations range from 0.50mm to 0.70mm across substitutes. All dimensions remain within acceptable PCB assembly tolerances for 0805 package format. CRCW08052K15FKEA offers the lowest profile at 0.50mm, while ERJ-6ENF2151V reaches 0.70mm maximum height.

Feature Alignment: RC0805FR-072K15L and RCS2012F2151CS both feature moisture-resistant properties without automotive qualification. AC0805FR-072K15L combines moisture resistance with AEC-Q200 rating. CRCW08052K15FKEA and ERJ-6ENF2151V provide AEC-Q200 qualification. TRR10EZPF2151 offers anti-sulfur protection similar to the main part.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-072K15L directly replace RCS2012F2151CS in existing designs?

A: Yes. RC0805FR-072K15L matches all critical electrical parameters (2.15 kΩ, ±1%, 0.125W), operates across the same temperature range (-55°C ~ 155°C), uses identical 0805 package format, and maintains ROHS3 compliance with MSL 1 rating. Physical height is 0.60mm compared to 0.66mm for the original part, remaining within standard PCB assembly tolerances.

Q: What is the difference between automotive-qualified and non-automotive substitutes?

A: AC0805FR-072K15L, CRCW08052K15FKEA, and ERJ-6ENF2151V carry AEC-Q200 automotive qualification, indicating enhanced reliability testing and quality standards required for automotive applications. RC0805FR-072K15L and RCS2012F2151CS do not carry this certification. Selection depends on application requirements and end-use environment.

Q: Why is TRR10EZPF2151 listed as a substitute if it is obsolete?

A: TRR10EZPF2151 is electrically and mechanically equivalent to RCS2012F2151CS and remains available in current inventory (5,247 pcs). However, obsolete status indicates discontinued production. This part is suitable only for repair, rework, or short-term production runs where existing stock is available. New designs should select from active production alternatives.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. All five substitute parts are supplied in Tape & Reel (TR) format, ensuring compatibility with automated assembly equipment and production workflows.

Q: What is the significance of the ±100ppm/°C temperature coefficient across all parts?

A: The ±100ppm/°C temperature coefficient is identical across the main part and all substitutes, ensuring consistent resistance drift over the -55°C ~ 155°C operating range. This parameter is critical for precision analog circuits and temperature-sensitive applications.

Q: Can I use CRCW08052K15FKEA in space-constrained PCB layouts?

A: CRCW08052K15FKEA offers the lowest profile height at 0.50mm maximum, making it suitable for space-constrained applications. However, all 0805 package substitutes maintain standard footprint dimensions (2.00mm x 1.25mm), so PCB layout compatibility is determined by footprint, not height variation.

Q: Which substitute offers the best inventory availability?

A: RC0805FR-072K15L (YAGEO) has the highest inventory level at 413,670 pcs, followed by ERJ-6ENF2151V (Panasonic) at 132,658 pcs. Both represent strong supply options for high-volume production requirements.

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